# US 10,307,026 B2 · Dust cup assembly and handheld cleaner having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,026 B2 - Document ID: US10307026B2 - Status: Granted - Kind: B2 - Application number: 15/238,054 - Filed: 2016-08-16 - Published: 2018-01-04 - Granted: 2019-06-04 - Earliest claimed: 2016-06-30 - Assignees: Jiangsu Midea Cleaning Appliances Co., Ltd. - Applicants: Jiangsu Midea Cleaning Appliances Co., Ltd. - Inventors: Min Zhong; Bingxian Song; Yonghua Wang - Web page: https://patentgrep.com/patent/US10307026B2 ## CPC - A47L 5/24: Hand-supported suction cleaners - A47L 9/106: {Dust removal} - A47L 9/127: {tube- or sleeve-shaped} - A47L 9/1608: {Cyclonic chamber constructions} - A47L 9/1616: {Multiple arrangement thereof} - A47L 9/1633: {Concentric cyclones} - A47L 9/1641: {for parallel flow} - A47L 9/165: {Construction of inlets} - A47L 9/1658: {Construction of outlets} - A47L 9/1666: {with filtering means} - A47L 9/1683: {Dust collecting chambers; Dust collecting receptacles} - A47L 9/24: Hoses {or pipes}; Hose {or pipe} couplings (hoses or hose joints in general F16L) - A47L 9/2842: {Suction motors or blowers} - B01D 45/16: generated by the winding course of the gas stream {, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes} - B01D 46/2403: {characterised by the physical shape or structure of the filtering element} - B01D 50/20: Combinations of devices covered by groups B01D45/00 and B01D46/00 - B04C 5/187: forming an integral part of the vortex chamber - B04C 5/26: for series flow - B04C 5/28: for parallel flow - B04C 9/00: Combinations with other devices, e.g. fans, {expansion chambers, diffusors, water locks}(with filters B01D50/00) - B01D 2279/55: for cleaning appliances, e.g. suction cleaners - B04C 2009/004: {with internal filters, in the cyclone chamber or in the vortex finder} - B04C 2009/008: {with injection or suction of gas or liquid into the cyclone} - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B04C: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ({centrifugal separation of water from steam B01D45/12;} jet mills B02C19/06; {wind sifters B07B7/00;} cyclonic type combustion apparatus F23; {vortex burners for cyclone-type combustion apparatus F23D1/02; cyclonic type combustion apparatus for gas turbines F23R3/00}) ## Abstract A dust cup assembly (100) and a handheld cleaner (1000) having the same are provided. The dust cup assembly (100) includes: a cup casing (1); a device housing (2) configured as a tube shape and disposed in the cup casing (1), wherein an outer end face of the device housing (2) at an axial side thereof abuts against or extends beyond a partial inner surface of the cup casing (1), and a dust removal chamber (A1) is defined between an inner surface of the cup casing (1) and an outer peripheral surface of the device housing (2) and surrounds the device housing (2) along a circumferential direction of the device housing (2); and a negative pressure device (3) located within the device housing (2) and enabling dusty air to enter the dust removal chamber (A1) for dust and air separation. ## Claims ### Claim 1 A dust cup assembly, comprising: a cup casing; a device housing configured to be the shape of a tube and disposed in the cup casing, wherein an outer end face of the device housing at an axial side thereof abuts against or extends beyond a partial inner surface of the cup casing, and a dust removal chamber is defined between an inner surface of the cup casing and an outer peripheral face of the device housing and surrounds the device housing along a circumferential direction of the device housing; and a negative pressure device located within the device housing and enabling dusty air to enter the dust removal chamber for dust and air separation, wherein the device housing further comprises a positioning member for positioning and cooperating with the negative pressure device to prevent the negative pressure device from an upward displacement, wherein the negative pressure device is mounted to the device housing through a bracket that comprises: an upholding portion supporting the negative pressure device at a bottom of the negative pressure device; and a connecting portion connected with the upholding portion and detachably connected to the device housing, wherein the dust removal chamber comprises a primary dust removal chamber and a secondary dust removal chamber, the primary dust removal chamber surrounding the secondary dust removal chamber in a radial direction of the dust removal chamber. ### Claim 2 (depends on 1) The dust cup assembly according to claim 1, wherein the negative pressure device is mounted to the device housing. ### Claim 3 (depends on 1) The dust cup assembly according to claim 1, wherein the bracket further comprises: an annular limiting portion fitted over the negative pressure device, and connected to the connecting portion and/or the upholding portion. ### Claim 4 (depends on 1) The dust cup assembly according to claim 1, wherein the connecting portion and the device housing are detachably connected. ### Claim 5 (depends on 4) The dust cup assembly according to claim 4, wherein the connecting portion is formed in the shape of a tube, and an outer peripheral wall of the connecting portion and an inner peripheral wall of the device housing are detachably connected through a snap structure or a thread structure. ### Claim 6 (depends on 1) The dust cup assembly according to claim 1, wherein a vibration absorbing member is provided between the bracket and the negative pressure device. ### Claim 7 (depends on 6) The dust cup assembly according to claim 6, wherein a part of the vibration absorbing member facing a side surface of the negative pressure device is spaced apart from the negative pressure device. ### Claim 8 (depends on 1) The dust cup assembly according to claim 1, wherein the device housing and the cup casing are detachably connected. ### Claim 9 (depends on 1) The dust cup assembly according to claim 1, wherein the cup casing comprises: a cup body configured to be the shape of a tube and having an axial open end; and a cup cover assembly detachably covering the open end of the cup body. ### Claim 10 (depends on 9) The dust cup assembly according to claim 9, wherein the cup cover assembly comprises: an inner cover disposed on the open end of the cup body; and an outer cover disposed on the open end of the cup body and enclosing the inner cover. ### Claim 11 (depends on 10) The dust cup assembly according to claim 10, wherein the inner cover and the outer cover are detachably mounted to the cup body separately. ### Claim 12 (depends on 11) The dust cup assembly according to claim 11, wherein a part of the inner cover is embedded in the cup body and an edge thereof abuts against the open end of the cup body; and the outer cover is connected with an outer peripheral surface of the open end of the cup body through snap connection or threaded connection. ### Claim 13 (depends on 10) The dust cup assembly according to claim 10, wherein the inner cover is detachably connected to the outer cover, and one of the inner cover and the outer cover is detachably mounted to the cup body. ### Claim 14 (depends on 10) The dust cup assembly according to claim 10, wherein a communicating chamber is provided between the inner cover and the outer cover, and the negative pressure device is configured to make an airstream separated from the dust removal chamber enter the device housing through the communicating chamber. ### Claim 15 (depends on 14) The dust cup assembly according to claim 14, wherein the cup cover assembly further comprises: an in-cover air passage member detachably disposed between the inner cover and the outer cover or integrally formed to an inner surface of the outer cover, the communicating chamber being defined between the inner cover and the in-cover air passage member. ### Claim 16 (depends on 14) The dust cup assembly according to claim 14, wherein the cup cover assembly further comprises: an in-cover filter detachably disposed in the communicating chamber to filter an airstream flowing into the communicating chamber. ### Claim 17 (depends on 14) The dust cup assembly according to claim 14, wherein the inner cover has an extension segment extending towards an interior of the cup body, and the extension segment defines an inflow communication hole for communicating the dust removal chamber with the communicating chamber. ### Claim 18 (depends on 14) The dust cup assembly according to claim 14, wherein the inner cover has an air outlet ring fitted with an air inlet end of the device housing through sleeve connection, and the air outlet ring defines an outflow communication hole for communicating the communicating chamber with an interior of the device housing. ### Claim 19 A handheld cleaner, comprising a dust cup assembly, the dust cup assembly comprising: a cup casing; a device housing configured to be the shape of a tube and disposed in the cup casing, wherein an outer end face of the device housing at an axial side thereof abuts against or extends beyond a partial inner surface of the cup casing and a dust removal chamber is defined between an inner surface of the cup casing and an outer peripheral face of the device housing and surrounds the device housing along a circumferential direction of the device housing, and a negative pressure device located within the device housing and enabling dusty air to enter the dust removal chamber for dust and air separation, wherein the device housing further comprises a positioning member for positioning and cooperating with the negative pressure device to prevent the negative pressure device from an upward displacement, wherein the negative pressure device is mounted to the device housing through a bracket that comprises: an upholding portion supporting the negative pressure device at a bottom of the negative pressure device; and a connecting portion connected with the upholding portion and detachably connected to the device housing, wherein the dust removal chamber comprises a primary dust removal chamber and a secondary dust removal chamber, the primary dust removal chamber surrounding the secondary dust removal chamber in a radial direction of the dust removal chamber.